如何对来自pyaudio的麦克风音频信息进行数学分析？

Question

I am trying to obtain the pitch, the level, and other stuff from my microphone using Python. I am trying using pyaudio, but I read that I need to use other libraries to generate the maths. I can't find how mix pyaudio with the math library.

Answer 1

您可以通过audioop.rms函数使用标准的Python模块audioop来确定音频样本的功率/响度。

Answer 2

I have performed basic signal processing (FFT etc) using numpy/scipy directly on the audio buffer without too much trouble. Be careful, you need to tell numpy about the buffer type: float or int, long or short, signed/unsigned ...